INFO now contains the time (in usecs) needed to fork() in order to persist. The info is available in the stats section of INFO.

save peak memory usage as statistic and show it in INFO. Also a new INFO field was added showing the fragmentation ratio using the peak memory info.

make sure that OBJECT ENCODING returns skiplist for sorted sets, and not raw, so that once we will merge specially encoded sorted sets everything will make sense.

DUMP implemented, RESTORE and MIGRATE fixed. Use zcalloc() instead of zmalloc()+memset() in sds.c when a new string is created with NULL initialization pointer.

centralized cluster config file name. Assigned slots in CLUSTER NODES output and in cluster config file.

fixed two diskstore issues, a quasi-deadlock creating problems with I/O speed and a race condition among threads

INFO commandstats section reset with config resetstat, a new microseconds per call field, and a few other minor things

Now INFO outputs the "INFO default" output if no argument is passed. Also added counts of calls for every command, thanks to an idea by Mike Shaver